Patents by Inventor Willy Durrenberger

Willy Durrenberger has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process and equipment for heating a liquid without pollution of the environment
    Patent number: 4685444
    Abstract: The lower section (9a) of a flame tube (9), in which a burner (11) generates a flame (F), protrudes into the water contents (W), which contains an absorbent, of a water tank (1). The hot combustion gases are drawn into the water and set in turbulent motion by means of a rotor (12), whereby a long residence time and large contact areas result. The purified gases leave the water tank (1) through an outlet (18). The heat generated within the water contents (W) is removed through a tube coil (6) through which a liquid flows. The equipment is uncomplicated and inexpensive, and ensures excellent efficiency. The escaping waste gases no longer contain any detectable pollutant residues.
    Type: Grant
    Filed: January 24, 1985
    Date of Patent: August 11, 1987
    Inventor: Willy Durrenberger